This is a minimal bracket for the "reaprapdiscount smart controller" or similar.
It's a very tight friction fit to the PCB. Depending on your printer you might need to adjust the gap. Left bracket has a cut out for the SD card slot.
123D Design file included for customizations.
----- If you remix this design you MUST share your source file ---- (123D Design in this case or whatever program you use to modify it) ----
I printed mine with a 0.6mm nozzle in PLA. Everything smaller should be fine. You might need a brim if your prints tends to warp.